He writes to his mother (once a month)对括号里的提问在《名校作业》七年级下3单元第3课时第2大题第1小题
问题描述：
He writes to his mother (once a month)对括号里的提问
在《名校作业》七年级下3单元第3课时第2大题第1小题
答
how often does he write to his mother？
答
How often does he write to his mother？
答
How often does he write to his mother?